William Herschel discovered NGC 4375 = H II-379 = h1238 on 11 Apr 1785 (sweep 396) and noted "F, S." JH made two observations and logged (sweep 66) "F; R: has a small star 35° nf, 90" dist."

400/500mm - 17.5" (4/13/02): faint, fairly small, elongated 3:2 SSW-NNE, 0.8'x0.6'. A mag 14.5 star lies 1.2' NE of center. Located 30' NW of a mag 4.3 SAO 82313 in a field with very few stars.

Notes by Steve Gottlieb